Re: /tmp folder ok?
Re: /tmp folder ok?
- Subject: Re: /tmp folder ok?
- From: "Chris Parker" <email@hidden>
- Date: Wed, 14 Jan 2009 16:24:47 -0800
NSTemporaryDirectory() already does (effectively) that, and yields the
same resulting folder.
You should just use NSTemporaryDirectory().
.chris
On Wed, Jan 14, 2009 at 3:44 PM, Graham Cox <email@hidden> wrote:
>
> On 15 Jan 2009, at 10:31 am, Chunk 1978 wrote:
>
>> so an app doesn't need administrative rights to writeToFile in the /tmp
>> folder?
>> _______________________________________________
>
>
> Don't do that.
>
> Instead use the FindFolder with the 'kTemporaryFolderType' constant. Here's
> a Cocoa wrapper (a category on NSFileManager) to help:
>
> @implementation NSFileManager (FindFolder)
>
>
> - (NSString*) pathToFolderOfType:(const OSType) folderType
> shouldCreateFolder:(BOOL) create
> {
> OSErr err;
> FSRef ref;
> NSString* path = nil;
>
> err = FSFindFolder( kUserDomain, folderType, create, &ref);
>
> if ( err == noErr )
> {
> // convert to CFURL and thence to path
>
> CFURLRef url = CFURLCreateFromFSRef(
> kCFAllocatorSystemDefault, &ref );
> path = (NSString*) CFURLCopyFileSystemPath( url,
> kCFURLPOSIXPathStyle );
> CFRelease( url );
> }
>
> return [path autorelease];
> }
>
>
> @end
>
>
> But yes, once you have the path you should have write permission for it.
>
> Note also though, that for the case of "safe saving" (i.e. write to a
> temporary file then swap with the 'real' file), you don't need to do that
> yourself. Just pass yes in the 'atomically' parameter in methods such as
> [NSData writeToFile:atomically:];
>
> hth,
>
> Graham
>
>
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